The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1989
Filed:
Aug. 12, 1987
Applicant:
Inventors:
Terrance J Velten, Savannah, GA (US);
Edward J Demmel, Newport Beach, CA (US);
Assignee:
Intercat, Inc., Sea Girt, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
502 64 ; 502 68 ;
Abstract
High concentrations of small (<4 microns) crystalline catalyst ingredients such as ZSM-5, low-soda exchanged Y-zeolite, ultra-stable Y-zeolite etc., can be incorporated into a durable matrix by use of binder formulations prepared from amorphous silica, alumina and zirconia, particularly those of colloidal dimensions. The binder formulations are slurried and associated with at least one active catalyst ingredient, which preferably is up to 60% ZSM-5. The resulting material is then spray-dryed and calcined to form binder matrices which are particularly resistant to attrition and particle density change.